Re: Arm Cross GCC 3.1 on Cygwin

["William A. Gatliff" <bgat at billgatliff dot com>]

Raymund:


Did you try adding a -lstdc++ to the gcc command line, after the main.cpp?

$ arm-elf-gcc main.cpp -lstdc++


b.g.


On Tue, Jun 18, 2002 at 06:56:00PM +0100, info2@raygmbh.de wrote:
> gcc-3.1 or gcc-2.95.3
> newlib-1.10.0
> binutils-2.11.2
> 
> Host: cygwin
> Target: arm-elf
> 
> I seemed to have success building a toolset with gcc 2.95.3 according to
> bill gatliffs "Getting Started with GNU" article. I only had ot edit a
> makefile in the build tree - adding a include path - because some step tried
> to include "windows.h".
> After this gcc 2.95.3 seemed to work with C++ (as in example below).
> 
> Then I tried the same thing with gcc 3.1. I had the same "windows.h" problem
> and also edited a header file in the src tree "std_cstdlib.h". I commented
> some "using" directives out (using ::div_t, using ::ldiv_t, etc.) and a
> inline func "div". I did this without knowing much about what I actually was
> doing.
> 
> After this the complete cross compiler built without error.
> 
> But gcc-3.1 seems to have some problem with c++:
> 
> When i compile the simple:
> 
> 
> main.cpp:
> 
> 
> #include <stdio.h>
> #include <new>
> 
> int main( char **argv, int argc )
> {
>   char * array = new char [500];
>   printf("hallo konsens!\n");
> }
> 
> 
> $ arm-elf-gcc main.cpp
> 
> 
> I get:
> 
> 
> /tmp/cc28ki7u.o: In function `main':
> /tmp/cc28ki7u.o(.text+0x1c): undefined reference to `operator new[](unsigned
> long)'
> collect2: ld returned 1 exit status
> 
> 
> 
> So I suspect something went wrong when building libgcc.a which should
> contain this reference. Or maybe something completely different...
> 
> I would like to use gcc-3.1, because 2.95.3 has problems with my project and
> it's templates but gcc-3.1 has not.
> 
> Raymund Hofmann
> 
> 
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-- 
Bill Gatliff
bgat@billgatliff.com

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